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Assessment of Mitochondrial Functions and Cell Viability in Renal Cells Overexpressing Protein Kinase C Isozymes
15:43

Assessment of Mitochondrial Functions and Cell Viability in Renal Cells Overexpressing Protein Kinase C Isozymes

Published on: January 7, 2013

[Effect of protein kinase C on human melanoma A375-S2 cell death induced by evodiamine]

Che Wang1, Min-wei Wang, Shin-ichi Tashiro

  • 1China-Japan Research Institute of Medical and Pharmaceutical Sciences.

Yao Xue Xue Bao = Acta Pharmaceutica Sinica
|February 28, 2006
PubMed
Abstract

Insights

Evodiamine induces apoptosis in A375-S2 cells by inhibiting protein kinase C (PKC), which regulates ERK and Bcl-2 expression, leading to cell death.

Area of Science:

  • Molecular Biology
  • Cell Biology
  • Pharmacology

Background:

  • Evodiamine is a natural compound with potential anti-cancer properties.
  • Understanding the molecular mechanisms of evodiamine's action is crucial for its therapeutic development.

Purpose of the Study:

  • To investigate the role of protein kinase C (PKC) in evodiamine-induced apoptosis of A375-S2 cells.
  • To elucidate the relationship between PKC, ERK, and Bcl-2 in this process.

Main Methods:

  • TUNEL assay to quantify apoptosis.
  • MTT assay for cytotoxic effect assessment.
  • Western blotting to analyze protein expression (ERK, phospho-ERK, Bcl-2).

Main Results:

  • Evodiamine treatment induced apoptosis in A375-S2 cells.
  • PKC inhibition (staurosporine) and ERK inhibition (PD98059) enhanced evodiamine-induced cell death.
  • Evodiamine inhibited PKC activity and down-regulated ERK, phospho-ERK, and Bcl-2 expression.

Conclusions:

  • PKC acts upstream of ERK and Bcl-2 in the evodiamine-induced cell death pathway.
  • These findings highlight PKC as a key mediator in evodiamine's anti-cancer effects.

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